Would love to see a source for that number. A *credible* source that is. I don't believe it for a second.
It’s more like 150 billion.
Then there’s this -—
Contrary to its official goals, the US has suppressed research on drug usage, although the CIA researched regardless during MKULTRA. For example, in 1995 the World Health Organization (WHO) and the United Nations Interregional Crime and Justice Research Institute (UNICRI) announced in a press release the publication of the results of the largest global study on cocaine use ever undertaken.
However, a decision in the World Health Assembly banned the publication of the study. In the sixth meeting of the B committee the US representative threatened that “If WHO activities relating to drugs failed to reinforce proven drug control approaches, funds for the relevant programmes should be curtailed”. This led to the decision to discontinue publication.
A part of the study has been released.[3] Several government-sponsored reports by commissioned experts have pointed to public substance abuse treatment as opposed to criminalization as the only effective way to battle the public health crisis caused by drugs; these recommendations have been mostly ignored by US government officials, and in some cases suppressed.
https://en.wikipedia.org/wiki/Illegal_drug_trade_in_the_United_States